The product was quite an effort to put together; the elastic needs to be even all the way around and pulled very tight. Better for two people to assemble. The screws that secure the handle in place are temprementle and they do need to come out if you want to store the product flat! My son has only just turned two and weighs 15 kgs and he loves it, however, he jumps very hard and very high and he leans on the handle for support a lot. The product lifts off the floor at the back and the whole thing tips! Parental guidance is recommended!